Problem with anti-spam code in Developer Help

ID:144025
 
Apr 21 2007, 11:41 pm
People in my games are able to by pass my spam filters by posting this text string





The Text String is invisable but can be created by using HTML Break Right or < br > in your code, it makes a rectangle shaped text icon which I cant seem to block and that is only visable when selected, can anyone help me block these dammed things?

I pasted an example above just after the word string, if you drag and select down from the word string you would have selected the invisiable rectangles I,m talking about.

Sorry if I,ve not explained very well.
#1 Apr 22 2007, 12:00 am
Look up html_encode()
#2 Apr 22 2007, 5:47 am
 

mob
   verb
      Say(a as text)
         world << "<b>[usr] said, </b>[html_encode(a)]"

Try that out. Im pretts sure it is something like that.
#3 Apr 22 2007, 6:13 am
In response to Alathon (#1)
And HTML_encode wont protect from that simble.
#4 Apr 22 2007, 1:01 pm
In response to Revojake (#3)
So what on earth will, its a real big time problem, people are able to crash my server with a single msg.
#5 Apr 22 2007, 1:18 pm
In response to Ginseng (#4)
It's decimal is 13, and the text equivalent is \n. Just replace it with \\n.
#6 Apr 22 2007, 1:32 pm
In response to Audeuro (#5)
I wanted to say that. =\
#7 Apr 22 2007, 1:53 pm
In response to Keeth (#6)
 
proc
  filter(string)
    string = replacetext(string,"\n","n")
    string = html_encode(string)
    for(var/i = 1 to length(string))
      var/ch = text2ascii(string,i)
      if(ch in 1 to 31) continue // remove bad ascii characters
      . += text2ascii(ch)
proc
  replacetext(string,find,replace)
    var/pos = findtext(string,find)
    while(pos)
      string = copytext(string,pos) + replace + copytext(string,pos+length(find))
      pos = findtext(string,find,pos)
    return string